# REVBOX vs Exhaust Note

The clearest difference is in-app purchases: Exhaust Note at none against REVBOX's 2. Exhaust Note also leads on update cadence (every 5 days vs every 4 months). REVBOX's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. REVBOX sells 2 in-app purchases, starting at $4.99 per month. Exhaust Note asks for nothing beyond the download.

REVBOX ships an update every 4 months, Exhaust Note every 5 days. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | REVBOX | Exhaust Note |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/exhaust-note-engine-sound-sim/id6797558385/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 90.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | — | Ad-supported |
| Size | 149 MB | 13 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Taizhi Wansi Technology Co., Ltd.](https://appshunter.io/developer/822018993) | [seihee han](https://appshunter.io/developer/629944907) |

## What reviewers say

### REVBOX

[App page](https://appshunter.io/ios/app/revbox/id6759547933)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Annual | $29.99 | per year |


### Exhaust Note

[App page](https://appshunter.io/ios/app/exhaust-note-engine-sound-sim/id6797558385)

This app synthesizes realistic engine exhaust sounds from scratch, based on the physics of firing orders and cylinder layouts. Explore various engine configurations, adjust muffler settings, and experience dynamic features like pops, bangs, and flames. It also includes a detailed 3D engine animation and driving simulation elements.

**Highlights:** Real-time synthesized exhaust sounds, Adjustable muffler settings, Diverse engine presets, Pop, bang, and flame effects, Living 3D engine animation, Driving feel simulation, Tunnel reverb mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is REVBOX free?

REVBOX is free to download, with in-app purchases available.

### Is Exhaust Note free?

Exhaust Note is free to download, with no in-app purchases.

### Do REVBOX or Exhaust Note have ads?

Exhaust Note shows ads; REVBOX does not.

### Which is updated more often, REVBOX or Exhaust Note?

REVBOX ships an update every 4 months, and Exhaust Note every 5 days. Most recently, REVBOX was updated on October 20, 2026 and Exhaust Note on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*